2021 22nd International Middle East Power Systems Conference (MEPCON)最新文献_第4页

A Single Switch High Gain DC-DC Converter with Switched Inductor 带开关电感的单开关高增益DC-DC变换器

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686286

Arafa S. Mansour, E. Sarhan, A. El-Sabbe, D. Osheba

引用次数: 1

Hosting Capacity Enhancement Through IoT-based Active Power Curtailment of PV Generation 基于物联网的光伏发电有功弃电主机容量提升

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686240

Ismail A. Soliman, M. Numair, Mahmoud M. Akl, D. Mansour, A. M. Elkholy, Mohamed G. Hussien

{"title":"Hosting Capacity Enhancement Through IoT-based Active Power Curtailment of PV Generation","authors":"Ismail A. Soliman, M. Numair, Mahmoud M. Akl, D. Mansour, A. M. Elkholy, Mohamed G. Hussien","doi":"10.1109/MEPCON50283.2021.9686240","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686240","url":null,"abstract":"Due to the high cost of installing large thermal power plants and the resulting emissions from such plants, consumers were encouraged to install rooftop photovoltaic systems. Yet, challenges of integrating solar power into the distribution networks are restraining the amount of allowed generation from rooftop PV systems. Grid operators (GO) started to even limit rooftop PV systems installation capacity toa maximum of their respective load peak value. This paper presents an IoT-based hosting capacity enhancement techniqueby active power curtailment of the power generated from the PV systems at prosumers. Where the IoT establishes a communication channel between the Grid Operator (GO) and all prosumers using the Internet-of-Asset (IoA) architecture. Measurement signals of the Low Voltage (LV) network, solar irradiation, and temperature are necessary for the control technique to generate the reference control voltage for the solar inverter to produce the curtailed PV generation. Theeffect of load and irradiation variation is studied in the presence of the MPPT control, and the GO control, this term isused to describe GO's signal to curtail PV generation. The system has been modeled and simulated via the MATLAB/Simulink® software package. The results validate the effectiveness of this enhancement technique in keeping the overvoltage levels below limits.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134629682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Assessment of PV Penetration Impacts on Assiut International Airport Long Distribution Feeder Using Multi-Objective Performance Index 基于多目标性能指标的亚苏特国际机场长配馈线光伏渗透影响评价

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686269

A. Makram, M. Morad, Amr Sayed, M. Nayel

{"title":"Assessment of PV Penetration Impacts on Assiut International Airport Long Distribution Feeder Using Multi-Objective Performance Index","authors":"A. Makram, M. Morad, Amr Sayed, M. Nayel","doi":"10.1109/MEPCON50283.2021.9686269","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686269","url":null,"abstract":"Photovoltaic (PV) systems play a very important role in the generation of sustainable and environmentally electric energy. The main objective of this paper is to: i) introduce a proposal for providing an electric power supply based on PV systems to improve the power quality, ii) assess the impacts of PV penetration on Assiut international airport (ATZ) distribution grid, which is fed by 11 kV long transmission line of 22 km length. First, the PV system sizing process is achieved using the PVSYST software. Then, the impacts of PV penetration on the distribution feeder are assessed using Electrical Transient Analyzer Program (ETAP) version 19.0.1. Impacts of PV penetration on the distribution feeder are assessed by the concept of multi-objective performance index (MPI). The results show that the consumed electrical energy from the main grid declined from 3.226 MW to 2.748 MW. Also, the active and reactive power losses are decreased by 10.2% and 15.6%, respectively providing a considerable decrease for the losses induced by the long transmission line of 22 km. In terms of MPI and its proposed indices, the results point to the satisfaction range of the indices results within a safe limit. The MPI improved from 0.4 to 0.63 approaching to unity that is the optimum value and providing an enhancement for the grid by 57% after PV penetration.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134589764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Feasibility of Travelling-Wave-Based Phase-Fault Protection for Transmission Line Connected to Inverter-Interfaced Renewable Energy Sources 与逆变器接口的可再生能源输电线路行波相故障保护的可行性

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686261

F. Aboshady

引用次数: 1

Inductance Estimator-Based Resonance Frequency Tracking for Induction Heating Applications 基于电感估计器的感应加热谐振频率跟踪

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686303

Mohamed Ashraf, A. Elserougi, A. Okaz

引用次数: 0

Analysis of a Practical Study for Under-Ground Cable Faults Causes 地下电缆故障原因的实际研究分析

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686288

E. Shaalan, S. Ward, A. Youssef

{"title":"Analysis of a Practical Study for Under-Ground Cable Faults Causes","authors":"E. Shaalan, S. Ward, A. Youssef","doi":"10.1109/MEPCON50283.2021.9686288","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686288","url":null,"abstract":"The underground cables are widely used for the transmission and distribution of the electrical energy over a wide range of voltages due to their merits. On the other hand, there are limitations for using the underground cables because the fault location is very difficult and consuming long time to be detected. In order to achieve a reliable operation of the electrical network and minimize the rate of the cable faults, accurate and effective fault causes analysis has to be carried out as we aim to prevent faults from happening rather than to restore the system after fault occurrence. This paper discussed the different underground cable faults and their causes through the analysis of a practical statistical study carried out for Dokky underground cable distribution networks in the Egyptian ministry of electricity to show the rate of occurrence of the different cable fault types during the previous twelve years, a practical study results were statistically analyzed and correlated to the cable faults causes analysis. It is noted that the underground cable faults are mainly due to cable insulation failure or joint insulation failure as a direct result of different partial discharge forms inside the cable or the joint.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125430115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Power Quality Issues in Traction Power Systems 牵引电力系统中的电能质量问题

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686222

Amin Mohamed Hanafy, Osama M. Hebala, M. Hamad

引用次数: 0

Optimal Sizing of Microgrid System Using Hybrid Firefly and Particle Swarm Optimization Algorithm 基于萤火虫和粒子群混合优化算法的微电网系统规模优化

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686271

I. M. Ibrahim, W. Omran, A. Abdelaziz

引用次数: 3

Effect of Magnetic Saturation on Performance of Series-Connected Wound-Rotor Induction Motors in Super-Synchronous Mode 磁饱和对超同步串联绕线转子异步电动机性能的影响

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686281

Mohammed Bekhiet Elsayed, A. Abdelsalam, E. Rashad

{"title":"Effect of Magnetic Saturation on Performance of Series-Connected Wound-Rotor Induction Motors in Super-Synchronous Mode","authors":"Mohammed Bekhiet Elsayed, A. Abdelsalam, E. Rashad","doi":"10.1109/MEPCON50283.2021.9686281","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686281","url":null,"abstract":"Series-connected wound-rotor induction motor (SCWRIM) is capable of operation at two modes according to the rotor speed. In the first mode, the motor has a general behavior similar to that of the conventional induction motor, including running at a speed less than synchronous speed. So, it is called sub-synchronous mode. The second mode is called super-synchronous mode, in which the speed reaches twice the synchronous speed with the absence of inherent starting torque capability. In both modes, the stator and rotor windings of a slip-ring induction machine are connected in series with a proper phase sequence. This paper presents theoretical and experimental investigation of magnetic saturation effect on the steady state performance of SCWRIM in super-synchronous mode. The effect of saturation on both direct and quadrature axes inductances are considered. The motor starting to that mode has been achieved using scalar control technique via a variable voltage variable frequency (VVVF) supply. A laboratory set-up has been prepared and implemented to get experimental results that showed the applicability of the given analysis to obtain more accurate steady-state performance characteristics.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123787444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A Novel Control Technique for Islanding Detection of Photo-voltaic Systems using A Reactive Power Droop 一种基于无功下垂的光伏系统孤岛检测控制新技术

2021 22nd International Middle East Power Systems Conference (MEPCON) Pub Date : 2021-12-14 DOI: 10.1109/MEPCON50283.2021.9686252

M. Ammar

{"title":"A Novel Control Technique for Islanding Detection of Photo-voltaic Systems using A Reactive Power Droop","authors":"M. Ammar","doi":"10.1109/MEPCON50283.2021.9686252","DOIUrl":"https://doi.org/10.1109/MEPCON50283.2021.9686252","url":null,"abstract":"Unplanned islanding of grid-connected photo-voltaic (PV) generation sources is a situation that must be avoided. Passive and active approaches were developed to detect islanding incidents with each approach having its own merits and disadvantages. Passive islanding techniques suffer from non-detection zones (NDZ) when the generated power closely matches the consumption of almost purely resistive loads. This paper proposes a passive islanding detection method through modifying the control interface of PV systems to provide an anti-islanding controller. The technique utilizes a reactive powerfrequency (Q-f) droop in generating the 3-phase voltage in the inverter. As PV systems are not required to supply reactive power to the grid, this droop equation can be considered inactive in grid-connected mode as the frequency is imposed by the grid and the distributed generation (DG) is operated at unity power factor. In islanded mode, the droop equation results in a phase shift that reflects in an error in the reactive power computation in the controller which is based on measurements at the terminals of the DG. Several case studies validate the proposed technique in MATLAB/Simulink as shown in the simulation results. The method is shown to work for both single DG and multi-DG systems with no drawbacks during normal operation in grid-connected mode.","PeriodicalId":141478,"journal":{"name":"2021 22nd International Middle East Power Systems Conference (MEPCON)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123275918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0